Hi Stephen Glynn,
Thank you for reaching out to Microsoft Q&A forum.
I understand this can be confusing. After making changes related to account security, the system may need additional time to fully process and reflect those updates.
Regarding your phone number no longer appearing as a verification option, this can happen if the number was previously linked to a security-related incident. In such cases, the system may temporarily remove or hide the phone number to help protect the account. Once the current security process is completed, you should be able to add a phone number again if needed.
Please follow the steps below in order:
1. Allow the 30‑day security period to complete
- After changing a primary email address or verification details, Microsoft applies a protection period. During this time, some older email addresses or verification options may still appear and may not be removable immediately.
2. Avoid removing all verification methods at the same time
- Doing so may cause additional restrictions on the account.
3. After the waiting period ends, sign in to your Microsoft account and:
- Confirm the new primary email address
- Add a phone number for verification (if needed)
- Remove any old email addresses you no longer use
4. Passkey (optional)
- A passkey allows you to sign in using your device (PIN, fingerprint, or face recognition) and provides stronger protection without relying on a password.
- You may refer to the official Microsoft page here: Signing in with a passkey
Please feel free to let me know if you have any further updates, thanks.
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